Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:42:53 2012 Optimize a model with 294 rows, 824 columns and 824 nonzeros Model has 586 quadratic constraints Presolve removed 0 rows and 18 columns Presolve time: 3.42s Presolved: 294 rows, 806 columns, 806 nonzeros Variable types: 586 continuous, 220 integer (219 binary) Root relaxation: objective 0.000000e+00, 83 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 140.0000000 - - - 3s 0 0 0.00000 0 115 140.00000 0.00000 100% - 3s 0 0 0.00000 0 188 140.00000 0.00000 100% - 3s 0 0 0.00000 0 180 140.00000 0.00000 100% - 3s 0 2 0.00000 0 180 140.00000 0.00000 100% - 3s * 54 52 32 24.0000000 2.21951 90.8% 34.7 3s * 59 43 36 23.0000000 2.21951 90.3% 34.7 3s 666 318 10.94629 17 792 23.00000 10.94629 52.4% 39.6 5s * 1928 243 49 22.0000000 15.94444 27.5% 35.4 8s 2716 71 20.47822 35 436 22.00000 19.66700 10.6% 33.8 10s Explored 2790 nodes (96238 simplex iterations) in 10.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%